Home / 38,995.83-53,826.93-28,921.05

Finding the Fourth Proportional to 38,995.83, 53,826.93 and 28,921.05

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Solution

The fourth proportional to 38,995.83, 53,826.93 and 28,921.05 is: 39,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,995.83 : 53,826.93 = 28,921.05 : x
  2. Step 2: Convert to fraction form
    38,995.83/53,826.93 = 28,921.05/x
  3. Step 3: Cross multiply
    38,995.83x = 53,826.93 × 28,921.05
  4. Step 4: Simplify right side
    38,995.83x = 1,556,731,333.88
  5. Step 5: Solve for x
    x = 1,556,731,333.88/38,995.83
  6. Step 6: Final answer
    x = 39,920.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.